Tea-polyphenol green fabricating catkin-like CuAg for electrochemical H2O2 detection

Green fabrication of unique structural nanoparticles has always been of increasing interest in many fields. Herein, a facile and green strategy of fabricating catkin-like CuAg nanocomposites using tea-polyphenols as reduction agent is reported. As-prepared nanocomposites have been characterized by a series of analysis. Physical characterizations show the synthesised of nanocomposites whose catkin-like special morphology. The electrochemical detection hydrogen peroxide (H2O2) results show that, catkin-like CuAg nanocomposites have good sensitivity, stability and anti-interference and it could detect without any additional mediator or enzyme. Specifically, it shows good H2O2 sensitivity of 2.55 mu A mM(-1)cm(-2) with range of 0.1-120 mM. Therefore, the catkin-like CuAg nanocomposites prepared by an environmental-friendly synthetic strategy, would provide a good reference for other green syntheses in the future.

Automated summary

This study reports a facile and green strategy of fabricating catkin-like CuAg nanocomposites using tea-polyphenols as the reduction agent. The nanocomposites exhibit a catkin-like special morphology as characterized by physical characterizations. The electrochemical detection hydrogen peroxide (H2O2) results demonstrate the good sensitivity, stability, and anti-interference of the catkin-like CuAg nanocomposites, which can detect H2O2 without any additional mediator or enzyme.